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Motion: Chapter 9

Motion The state in which one object’s distance from another is changing.
Reference Point A place or object used for comparison to describe the position or motion of a person or object.
Distance The length of a path between two points.
Displacements The length and direction of a straight line between starting and ending.
Vector A measurable quantity that consists of both a magnitude and a direction.
Scalar A measurable quantity that consists only magnitude.
Speed The distance an object travels per unit of time.
Velocity Speed in a given direction.
Acceleration The rate at which velocity changes.
Energy The ability to do work or cause change.
Kinetic Energy Energy that an object has due to its motion.
Potential Energy Stored energy that results from the position or shape of an object.
Gravitational Energy Potential energy related to an object’s height.
Elastic Energy The energy of stretched or compressed objects.
Mechanical Energy An object’s combined kinetic energy and potential energy.
Conservation of Energy A principle stating that energy cannot be created or destroyed, but can be altered from one object to another.
Work Force exerted on an object that causes it to move.
Created by: lopez.ash